RadOMA CCD Array Spectroradiometers
GS-1290 spectroradiometers provide high accuracy and near perfect repeatability. Multiple models cover UV, Visible and near-IR wavelengths for use in a wide range of testing applications. GS-1290 spectroradiometers are designed for laboratory use and quality control applications.
As the inventors of the first high-performance, computer-controlled spectroradiometers for LED testing, Gamma Scientific has continued to set the standard in spectroradiometer accuracy and reliability. Gamma Scientific spectroradiometers are trusted by the world’s leading organizations to provide accurate measurements.
Gamma Scientific spectroradiometers feature a proprietary optical design and back thinned CCD technology that provides exceptional low-light measurements, superior blue light sensitivity and highly accurate measurements of wavelength, color and power.
Original system calibration is performed in Gamma Scientific’s accredited laboratory using NIST-traceable standards. Gamma Scientific spectroradiometers can be self-calibrated and do not have to be returned to the factory for calibration.
GS-1290-NVIS Dual Stage Cooled Spectroradiometers
RadOMA Dual Stage Cooled CCD Array Spectroradiometers are designed for manufacturers of military displays and other lighted instrumentation used in conjunction with night vision imaging systems (NVIS) that require their products to conform to MIL-STD-3009.
While the MIL-SPEC and competitive systems target a 10:1 signal-to-noise (SNR) measurement ratio, our GS-1290-NVIS spectroradiometers are designed and built to deliver SNR of 100:1 or greater.
This increase in the performance level in the metrology system enables manufacturers to ensure that that their products are fully compliant with the MIL-SPEC, without the downside of unnecessarily failing good product.
LED and SSL (Solid State Lighting) Measurement
Laser Power Measurement
Standard Lamps and Bulbs
Photometric and Radiometric Measurements
As a Uniform Light Source
With over 40 years of experience in designing integrating spheres, Gamma Scientific has the expertise to build custom integrating spheres and sphere systems to meet your testing requirements.
Gamma Scientific integrating spheres are available in a wide range of sizes from 25mm to 3m in diameter. Multi-purpose integrating spheres provide maximum flexibility and are custom built to meet your exact testing requirements. Light measurement spheres for LED testing are optimized for capturing total flux measurements of LED lamps and luminaires.
All spheres come with your choice of coating. Choose from our proprietary polytetra-fluoroethylene (PTFE) or a specially formulated barium-sulfate coating. The PTFE coating gives > 99% reflectance over the UV/VIS/NIR region, and is almost perfectly Lambertian. Our barium-sulfate coating is lightweight and rugged offering a highly diffuse reflectance of 95% over the UV/VIS/NIR region.
Tunable LED Light Sources
Camera and Image Sensor Calibration (CCD, CMOS, etc.)
Ambient Light Sensor Calibration
OEM Camera Manufacturing
Diagnostic Medical Imaging
Technical and Industrial Photography
We are excited to announce our new light source for camera and image sensor calibration that delivers higher spectral resolution and accuracy, together with a broader color gamut, compared to any previously available halogen or LED-based source.
The new SpectralLED™ tunable light source accomplishes this by combining the output of 30 discrete LEDs, each having a different center wavelength. This enables the SpectralLED™ to be programed on-demand to produce output that closely matches virtually any illuminant source (e.g. blackbody, daylight, fluorescent, LED, CIE illuminants), or the spectrum of any illuminant reflected by a target (such as a Macbeth™ or X RITE™ target). The SpectralLED™ can even be swept through wavelengths to simulate a scanning monochromator, but with no moving parts.
Calibration Light Sources
Optical Calibration and Metrology
NVIS Compatibility Testing
Standard calibration light sources from Gamma Scientific are used for optical calibration of light measurement instruments, including spectroradiometers, photometers and radiometers.
All of our calibration light sources meet rigid quality standards for use in the most challenging testing environments.
A wide range of light sources is available to serve as precision standards of radiant flux and white-light standards of spectral irradiance or luminance.
940 LED Series Goniometers
940 LED-1200 Goniometer
The 940 LED-1200 goniometer measures samples up to 1250 mm in diameter and 50 kg in weight.
The goniometer is in conformity with CIE, DIN and IES standards.
940 LED-1850 Goniometer
The 940 LED-1850 measures samples up to 1850 mm in diameter and 50 kg in weight.
The goniometer is in conformity with CIE, DIN and IES standards.
Gamma Scientific’s 940 LED Series Goniometers are optimized to provide precise measurement of angle dependent spatial radiation properties of large LED luminaires, lamps and modules.
Two models are available for measuring different samples sizes, and both the 940 LED-1200 and LED-1850 are in conformity with CIE, DIN and IES standards.
940 LED Goniometers can be combined with a Gamma Scientific Spectroradiometer or UDT Instruments photometer depending on your specific measurement needs.
Combining the goniometer with a spectroradiometer allows for measurement of luminous flux, color coordinates and CRI. Connecting the goniometer to a photometer provides fast measurements of spatial light distribution.
Original system calibration is performed in Gamma Scientific’s ISO-17025, NVLAP (Lab Code 200823-0) accredited testing and calibration laboratory in San Diego, California.
Reflectance/Transmission Measurement Equipment
Complete your inspections faster, and achieve higher standards of quality with accurate, repeatable reflectance and transmission measurement systems from Gamma Scientific.
Controlled optical geometry and industry leading spectroradiometer performance offer quick, accurate reflection/transmission measurements for any glass or polished transmissive element.
When measuring reflectance, Gamma Scientific’s unique technology allows manufacturers to perform single sided inspection on the first surface while excluding the second surface.
With handheld, semi-automatic and fully automated options, Gamma Scientific reflectometers have tremendous flexibility and can be used for R&D, QA and production line testing.
GS-191SA-1045 Semi-utomated Dual Angle Reflectance Measurement Systems
GS-191FA-1045 Rotary Reflectance Measurement Systems
Photometers and Radiometers
UDT Instruments, a division of Gamma Scientific, offers an extensive selection of photometers, lux meters, luminance meters, illuminance meters and optical sensors to meet your photometric test and measurement needs.
Our photometric sensors are designed with the most accurate photometric filters in the world to accurately match the human eye response.
Combining our wide range of optometers, photometric sensors and accessories, with our state-of-the-art calibration facilities, allows our applications engineers to assemble and configure custom photometer systems for nearly any project.
UDT Instruments, a division of Gamma Scientific, offers an extensive selection of radiometers, radiance meters, irradiance meters and optical sensors to meet your radiometric test and measurement needs.
Combining our wide range of optometers, radiometric sensors and accessories, with our state-of-the-art calibration facilities, allows our applications engineers to assemble and configure custom radiometer systems for nearly any project.
Luminous Flux Measurements
Luminous Intensity Measurements
Our photometric sensors are designed with advanced photometric filters to simulate the response of the human visual system and match the spectral response of a standard observer. When coupled with an optometer, photodetectors are used to measure luminous flux (lm), illuminance (lux), luminous intensity (cd) and luminance (cd/m²).
UDTi photosensors and sensor heads are offered in three different mechanical configurations: Sensors from the Standard Series adapt for use with most accessories. The Miniature Series includes a similar range of sensors with a smaller-diameter package, compatible with UDTi’s line of integrating sphere accessories. The Low-Profile Series is designed for applications with limited mechanical clearance.
Radiant Flux Measurements
Radiant Intensity Measurements
UDT Instruments, a Gamma Scientific company, produces precision radiometric sensors for a wide range of radiometric testing applications.
UDTi radiometric sensors are ideally suited for OEMs, value-added resellers and any company that is interested in accurately measuring light intensity and brightness.
When coupled with an optometer, these sensors are used to measure radiant flux, irradiance, radiant intensity and radiance.
Position Sensing Instruments
Our extensive selection of optical position sensors, position amplifiers/indicators and accessories allows our applications engineers to assemble and configure a tremendous variety of position-sensing systems.
To simplify the selection of options available, we have defined a set of standard bundles, which represent a sample of the position-sensing solutions available from UDT Instruments.
Position Sensing Amplifiers
A position-sensing amplifier (PSA) processes the signal produced by a position sensor and produces an output signal correlated with position.
Position Sensing Indicator
A position-sensing indicator (PSI) combines a position-sensing amplifier and display module in a single instrument, in order to provide a direct positional readout.
The key to understanding optical position sensing systems is to understand the sensors which form the heart of such systems. These fall into two basic categories: Segmented and continuous.
For over 40 years UDT Instruments, a Gamma Scientific company, has been trusted by the world’s leading organizations to provide accurate light measurement systems.
UDT Instruments manufactures precision photometers, radiometers, colorimeters and photosensors for optical measurement applications.
UDT Instruments designs the most accurate photometric filters in the world, with an unsurpassed ability to match the human eye’s sensitivity to color and light intensity. Each sensor includes a NIST-traceable calibration.
High-performance optometers from UDT Instruments can be combined with our integrating spheres and detectors to create complete photometric and radiometric test systems with industry leading accuracy.
System Configuration Guide
Learn how to configure a photometer or radiometer system to meet your testing requirements with this free guide from Gamma Scientific.
What’s in the Guide?
Definitions of the most important terms in photometry
Photometric to radiometric conversion factors
How to specify a photometer system
Photometric quantity units, symbols and abbreviations
What’s in the Guide?
Definitions of the most important terms in radiometry
How to specify a radiometer system
Radiometric quantity units, symbols and abbreviations
Calibration by transfer of standards
NED-LMD Near-Eye Display Measurement Systems
The world's most comprehensive test systems to completely characterize augmented reality, virtual reality, mixed reality, and heads-up displays (AR, VR, MR and HUDs) by truly emulating the human eye and conforming to the latest standards being developed by the IEC and SID.
The Product family features the innovative 'Robotic Eye' that uniquely correlates the measurements to a human user for meaningful and hyperspectral, high resolution mapping of the virtual image and qualified viewing space of near-eye displays.
Test Applications for:
AR, VR, MR consumer electronics headsets
Gaming, entertainment and media devices
Industrial, enterprise, education and training displays
Healthcare and medical systems
Fixed automotive Head-Up displays (HUDs)
Helmet-mounted displays (HMD's)
High Spatial Resolution, Color & Contrast Measurement
Compact size to allow positioning of entrance pupil at the design eye point
Small 1 to 5 mm entrance pupil diameter for accurate luminance and color measurement and eye motion box mapping
High sensitivity / high dynamic range spectrometer with signal to noise for small and large areas
Exceptional color measurement spectral purity
Ability to cover over 160 degree FOV with high resolution measurements in the Virtual Image space
Precision angular alignment to the device under test
Precision mechanical positioning to the design eye point
- Luminance and Color Uniformity
- Resolution With Eye Position in Qualified Viewing Space
- Luminance with Eye Position in Qualified Viewing Space
- Pixel / Line Defects
- Michelson Contrast and MTF
- Display Image Virtual Distance
- Design Eye Box Mapping
- Field of View
- Left / Right Eye Parallax
- Field of View Image Distortion
- Display Timing Including Response Time, Latency and Motion Artifacts